Pahoehoe

The Devils Garden lava flow field contains excellent examples of inflated pahoehoelava. The photo shows the surface on an inflated lava flow. The fresh-looking flows cover an area of 45 square miles (117 km square). The flow field contains excellent examples of features produced during basaltic volcanism. These features include: kipukas, spatter ramparts, spatter cones, fissures, and tumuli. The Devils Garden lava flow field is probably between 50,000 and 10,000 years old. Photo courtesy of the Oregon Department of Geology and Mineral Industries.